Loopback-Component-Passport link account not working

[Michael Lee]

Hi,

To my understanding, social account linking is for the scenario when you already have a LoopBack user account created with email and password, and then you want to link your Facebook account with your LoopBack account under the same email address. 

I created the LoopBack user, logged in, and then tried '/link/facebook'. Upon successful Facebook login, I got the profile returned. However, the 'req.user' is undefined, and I got done('No user is logged in') at line 297 of passport-configurator.js. Any idea why the 'user' is not there?

loopback-component-passport/lib/passport-configurator.js:

292          if (link) {

293            if (req.user) {

294              self.userCredentialModel.link(req.user.id, name, authScheme, profile,

295                {accessToken: accessToken, refreshToken: refreshToken}, options, done);

296            } else {

297              done('No user is logged in');

298            }

299          } else {

Thanks,

Michael

[Raymond Feng]

Did you try https://github.com/strongloop/loopback-example-passport?

Thanks,

---

Raymond Feng

Co-Founder and Architect @ StrongLoop, Inc.

StrongLoop makes it easy to develop APIs in Node, plus get DevOps capabilities like monitoring, debugging and clustering.

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[Michael Lee]

Raymond,

I can reproduce it with loopback-example-passport. It gives the exact same problem.

First, I create a LoopBack user:

curl -X POST -H "Content-Type:application/json" -d '{"email": "some...@gmail.com", "password": "somepass"}' http://localhost:3000/api/users

Then I go to http://localhost:3000/link/facebook

and sign in with a Facebook account under the email "some...@gmail.com"

Then it goes to

done('No user is logged in'); and redirects to "failureRedirect".

Thanks,

Michael

[Jens Winter]

Hello there,

is there a solution for this problem? I'm also running into this issue.

Thanks!

Best regards,

Jens

[Ahmed Abdul Moniem]

Guys the same problem for me until now!

Any solution?

[Alex Megalokonomos]

Hi everyone,

I haven't actually tested to see if there is indeed a bug but the discussion leads me to believe that you're forgetting a crucial step (the way I understand it)

You HAVE to be logged in to the local account for linking to work. The email is irrelevant.. LB does not link accounts based on email but based on the fact that it's the same person/token that has access to both accounts

i.e. create a LOCAL user with so...@email.com

local log in as that user 

go to /link/facebook with the access token set as a logged in local user and log in with FB

that way the local and FB accounts are linked even if the fb account has a different email....it's completely irrelevant

The code above is clear as day with regards to the fact:

if (link)  { //if this is a linking log in request

   if (req.user) { // and this user is logged in already with some account X

       self.userCredentialModel.link(req.user.id, name, authScheme, profile, {accessToken: accessToken, refreshToken: refreshToken}, options, done);  //link the logged in user with the profile of the new login 

    } else {

       done('No user is logged in'); //no user is already logged in, so there is nothing to link with....it does NOT search by email

}

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[Ahmed Abdul Moniem]

I don't understand the Local account?

Already I have a model inherit from User and I created a new user in this new model

I have a collection (in mongo) contains this user and I can log in using the login end point using email/pass of this user

I am logged in in my application and trying to call this link/facebook and always req.user is undefined!

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[Alex Megalokonomos]

Are you sure you're sending the access token with the request?

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[Ahmed Abdul Moniem]

Yes .. this is the link for example: http://localhost:3000/link/facebook?access_token=2YNoVnvoUlGLFxkfedhx8YaouvgHDJqFrfoKy0HywkLVZbCLKJc3S5OXvf9H7z4I

[Ahmed Abdul Moniem]

Any clue?

[Danny Colceag]

Any updates on this issue? 

Do you know if we can hook into loopback-component-passport events or operations to augment them with additional functionality?

Thanks!

[Regev Brody]

Also looking for a solution